Femap 11 Whats New


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  • When data is internalized into Femap, each output set gets a header, containing information about the analysis program, analysis type, time step value or frequency value, adding a little to the total size of the data. In addition, FEMAP will calculate some data that’s not output by the solver, i.e. Major Stress, vonMises Stress. The end result is that the storage requirement for the data actually expands a little bit when it’s internalized by Femap.
  • With v11’s “Attach”, the header is still created, but that’s all that is stored with FEMAP. This keeps the model file itself small and light. In addition, all the results data has not been run through the FEMAP database and now does not bloat FEMAP’s database cache.
  • In a case where one points to a large number of results files, it’s very obvious how this can keep the demands on storing the Femap model to a minimum, speeding up File – Open, and keeping Femap’s memory footprint lower when running.
  • No change how everything is done in FEMAP, all post-processing commands are the same and don’t differentiate between attached and internalized data. One can have any number of attached files and internalized output sets.Nastran .op2 support in v11, looking to add the other formats as fast as we can. The code has been architected such that once the first one has been done (.op2), it’s now much easier to plug in other output file formats.Attached results can be selectively internalized. Once output data has been attached, the user can then specifiy that some, or, all of it, can be internalized as before to reside in the FEMAP .modfem file.
  • Boeing International Space Station Laboratory model as a baseline. Without any output data, it’s roughly 69MB on Disk, and 303 MB of RAM used when running. Attaching to the file results file as opposed to internalizing is better across the board, it’s faster, smaller, and doesn’t clog Femap’s database cache with output data.
  • Vertex Buffer Objects use a lot of RAM, but they’re a lot faster than not using them.
  • Performance Numbers – basically 6 – 8 times faster dynamic rotation performance.
  • Vertex Buffer Objects can make a 4.5 Million Node/Element model 6x faster as long as you have a 2 GB Graphics card. After v11 (v11.1), OpenGL based graphics will be faster still with a lot less RAM requirements.
  • FE models can be updated or remeshed more easily. Geometry can be created based on the original mesh and is automatically associated tothat mesh. With the new geometry in place, it can be modified using the existing geometry modeling tools and remeshed. Further mesh changes can be made using the Meshing Toolbox. In addition, you can simply delete the mesh once you have the geometry, add cutouts and other modifications and then remesh. You can work on individual patches of shell elements and turn them into geometry. Alternatively, you can select the entire mesh and generate a surface, but some of the cusps may not be created. For most effective results, discreet regions should be picked manually.
  • In shipping Femap, one can already assign Superelement IDs to nodes and create a Superelement run. With v11, support for External Superelements will be available. Femap makes it easy to create a store external superelements, and then once these are available (or supplied to you by a 3rd party), Femap add new functionality to create the full system model using any number of superelements and a residual structure.
  • A complete do-over. No more limits on number of curves and a lot more options. User input at this time would be greatly appreciated – is there something users would like added to current XY-plotting?
  • Currently one can plot plate and solid data in the same post-processing windows, we’re adding line data as well.
  • Femap 11 Whats New

    1. 1. Femap 11What’s New © Siemens AG 2013. All rights reserved. Siemens PLM Software
    2. 2. Femap Release Schedule For several years, Femap has been on an approximately yearly release schedule Courtesy of Predictive Engineering  v11: January 2013  v10.3.1: January 2012  v10.3: October 2011  v10.2: October 2010  v10.1.1: January 2010  v10.1: August 2009  V10: December 2008 © Siemens AG 2013. All rights reserved.Page 2 Siemens PLM Software
    3. 3. Femap 11Launch PlanFemap version 11Announcement: 9th January 2013 Available online on GTAC site Release to manufacturing: early January 2013 Shipping to customers: late January 2013NX Nastran NX Nastran 8.5 is included in Femap with NX Nastran bundle © Siemens AG 2013. All rights reserved.Page 3 Siemens PLM Software
    4. 4. Femap DirectionFemap continues to provide: A modeling environment that’s dedicated to FEA The in-depth, detailed functionality required to accurately model real- world parts and assemblies Customer driven features and functionality Courtesy of GleisFrei Courtesy of Femtec Courtesy of IHC Handling Systems Courtesy of Duraldur © Siemens AG 2013. All rights reserved.Page 4 Siemens PLM Software
    5. 5. Femap 11Primary Focus and MessagesImproved productivity through process improvement Improved results data processing Streamlined XY plotting capabilityIncreased simulation scope through discipline extensions External superelement support NX Nastran integration enhancementsFaster preprocessing through performance improvements Improved graphics architecture © Siemens AG 2013. All rights reserved.Page 5 Siemens PLM Software
    6. 6. Femap 11Key Development ItemsExternal results filesGraphics performance improvementsCreate geometry from meshExternal superelement supportStreamlined XY plottingNX Nastran integrationCustomer driven enhancements © Siemens AG 2013. All rights reserved.Page 6 Siemens PLM Software
    7. 7. Femap 11Results Data ConsiderationsQuantity of results data generated continues to increase Model sizes continue to increase Advanced analyses with incremental solutions can create huge amounts of data  Dynamic response time or frequency steps  Nonlinear load or time steps Time to access data increases Database sizes can become very large and unwieldy to manageThe solution: Option for external results files that can attach to the Femap modfem database file © Siemens AG 2013. All rights reserved.Page 7 Siemens PLM Software
    8. 8. Femap v10.3 and Prior Versions External Results Files Imported results data (10.3 and prior versions) .modfem .op2 Model NX Nastran Information, Results FileNodes, Elements, Materials, Properties, File / Import / Analysis Results… Loads, etc. © Siemens AG 2013. All rights reserved. Page 8 Siemens PLM Software
    9. 9. Femap 11 External Results Files Attached results data .modfem .op2 Model NX Nastran Information, Results File File / Attach to Results…Nodes, Elements, (.op2) Materials, Properties, Loads, etc. © Siemens AG 2013. All rights reserved. Page 9 Siemens PLM Software
    10. 10. Femap 11External Results Files .op2Attach multiple databases .modfem File / Attach to Results… © Siemens AG 2013. All rights reserved.Page 10 Siemens PLM Software
    11. 11. Femap 11External Results FilesAttach to external results files Femap modfem database size minimized  Results data import no longer required Postprocessing functionality does not change External and internal results can coexist Solver support rollout plan:  Nastran .op2 and FNO addressed initially  ABAQUS .odb, Nastran .xdb, ANSYS .rst to follow Significantly increased efficiency for accessing transient results with attached results files vs. modfem imported results © Siemens AG 2013. All rights reserved.Page 11 Siemens PLM Software
    12. 12. Femap 11External Results FilesInternational Space StationLaboratory Module188,935 Nodes184,592 ElementsOutput File: NX Nastran op226 Static Results Sets: 2.9GB Results Model Memory Import/Attach Envelope Time Mode Size Time No results 68.8 MB 303 MB - - Internal 3.3 GB 3.64 GB 103 s 200 s Attached 70.7 MB 632 MB 17 s 164 s >6x faster >20% faster © Siemens AG 2013. All rights reserved.Page 12 Siemens PLM Software
    13. 13. Femap 11External Results FilesBenefits Greater efficiency with faster data access  Attach time >6x faster than import time Greater efficiency with reduced memory usage Smaller Femap modfem database size  More manageable data handling and storage © Siemens AG 2013. All rights reserved.Page 13 Siemens PLM Software
    14. 14. Femap 11 NST External Results Example Railway vehicle extrusion panel  Advanced Nonlinear (SOL 601)  13,822 nodes  13,951 elements  Model size without output: 6.968 MB  NX Nastran op2 file: 5.85GB  2,556 nonlinear static results stepsResults Mode Model Size PC Memory* Import/Attach Time Reopen Time Internal 12.05 GB 7.75 GB 25min 220 s Attach 8.692 MB 1.7GB 1min 1sAttach / Internal 0.486 ** 0.219 25x faster 220x faster* Include other windows applications,** Including op2 file © Siemens AG 2013. All rights reserved. Page 14 Siemens PLM Software
    15. 15. Femap 11NST External Results Example“I was very impressed with the performance of the external resultscapability in Femap v11. Using this new feature, we were able tosignificantly reduce processing time while keeping the computerresource usage low. Reopening a large analysis result file was over 200times faster. This is great news for CAE users who are concerned aboutthe trend of increasing analysis model sizes.” Cong Yuan, Engineering Department, NST © Siemens AG 2013. All rights reserved.Page 15 Siemens PLM Software
    16. 16. Femap 11Graphics Performance ConsiderationsQuantity of model data displayed continues to increase Model size trend still increasing Graphics performance improvement is a continuous process in Femap  Previous transition from Windows GDI to OpenGL  Femap’s use of OpenGL continues to expand © Siemens AG 2013. All rights reserved.Page 16 Siemens PLM Software
    17. 17. Femap 11Graphics Performance ImprovementsVertex Buffer Object (VBO) An OpenGL feature that allows data to be uploaded to the graphics card Offer substantial performance gains  Vertex data resides in graphics card memory rather than system memory  Vertex data can be rendered directly by graphics cardVertex Buffer Objects (VBOs) are Buffer Objects that are used for vertex data.Since the storage for buffer objects is allocated by OpenGL, vertex buffer objectsare a mechanism for storing vertex data in "fast" memory (i.e. video RAM or AGPRAM, and in the case of PCI Express, video RAM or RAM), thereby allowing forsignificant increases in vertex throughput between the application and the GPU. © Siemens AG 2013. All rights reserved.Page 17 Siemens PLM Software
    18. 18. Femap 11Graphics Performance ImprovementsFemap 11 includes support for VBOs Up to an order of magnitude performance improvement in the dynamic rotation of large models Depends on graphics card, graphics memory, and the model – can use large amounts of graphics memory © Siemens AG 2013. All rights reserved.Page 18 Siemens PLM Software
    19. 19. Femap 11 Graphics Performance Improvements Model Description Performance Improvement Model 1 in 10.3.1/64 with no vertex arrays1600 solids – each solid is a 100x1x1 brick 440ms, in dev 64 release 50ms (8.8 timeswith the four long edges filleted to .1 radius faster) Model 2 in 10.3.1/64 with no vertex arrays1600 solids – each solid is a sphere of 1213ms, in dev 64 release 270ms (4.5 timesradius 1 faster)640,000 quad4 elements Model 3 in 10.3.1/64 with no vertex arrays 427ms, in dev 64 release 408ms but with VBO on, 64ms (6.3 times faster) and uses about 151MB of graphics memory1,919,488 tetra10s – 16 solids of Model 4 in 10.3.1/64 with no vertex arrays100x100x1 block – each block has 746ms, in dev 64 release 750ms but with VBO119,968 elements on, 130ms (5.7 times faster) and uses about 252MB of graphics memory*AMD v3900 card © Siemens AG 2013. All rights reserved. Page 19 Siemens PLM Software
    20. 20. Femap 11Graphics Performance ImprovementsLimits of Performance on DellPrecision Mobile Workstation I7-2860QM – 2.5 GHz 16 GB RAM nVidia M2000 – 2GB RAM GraphicsMultiple Copies of the Boeing ISSLaboratory Module4.5M Nodes and ElementsDynamic rotation performanceusing VBOs: ~8x faster, V10.3 tov11 © Siemens AG 2013. All rights reserved. Page 20 Siemens PLM Software
    21. 21. Femap 11Graphics Performance ImprovementsBenefits Increased productivity with faster graphics performance Dynamic rotation of large models >5x faster using VBOs © Siemens AG 2013. All rights reserved.Page 21 Siemens PLM Software
    22. 22. Femap 11Working with Legacy FE ModelsIt is sometimes necessary to work with legacy FE models for which thereis no underlying geometry available, only the FE mesh Performing model updates to such models or simply changing the mesh density is difficult and time consuming Error prone: danger of not adhering to the original geometry topologyThe solution: Femap’s create geometry from mesh capability © Siemens AG 2013. All rights reserved.Page 22 Siemens PLM Software
    23. 23. Femap 11Create Geometry from MeshCreate surface geometry from existing shell meshes when there is nounderlying geometry available Easily make model changes to existing meshes Easily remesh existing FE models Model topology maintained Automatic mesh / geometry associativity Mesh New Geometry New Mesh © Siemens AG 2013. All rights reserved.Page 23 Siemens PLM Software
    24. 24. Femap 11Create Geometry from MeshWorkflow:Import FEA input file… © Siemens AG 2013. All rights reserved.Page 24 Siemens PLM Software
    25. 25. Femap 11Create Geometry from MeshWorkflow:Create surfaces from patches of elements using Femap’s selectionmethods… © Siemens AG 2013. All rights reserved.Page 25 Siemens PLM Software
    26. 26. Femap 11Create Geometry from MeshWorkflow:Stitch the surfaces together… © Siemens AG 2013. All rights reserved.Page 26 Siemens PLM Software
    27. 27. Femap 11Create Geometry from MeshWorkflow:Add cutouts, stiffener locations, whatever modifications are required… © Siemens AG 2013. All rights reserved.Page 27 Siemens PLM Software
    28. 28. Femap 11Create Geometry from MeshWorkflow:Re-mesh the geometry to create a new FE model © Siemens AG 2013. All rights reserved.Page 28 Siemens PLM Software
    29. 29. Femap 11Create Geometry from MeshBenefits Increased productivity  Easier to remesh or make model changes to legacy FE models for which there is no underlying geometry available Less error prone  When making model changes or remeshing original model topology is maintained © Siemens AG 2013. All rights reserved.Page 29 Siemens PLM Software
    30. 30. Femap 11External Superelements Reduce upstream SEsWhat is a superelement? to residual structure Represents a portion of a FE model SE defined by nodes (interior points) Perform analysis on Connects and reduces to boundary points residual structure Exact static reduction Additional dofs added for dynamic reduction Analysis is performed on residual structure Data recovery of upstream SEs Superelement K, M 70 (SEID=70) B, PResidual Structure 0 (SEID=0) © Siemens AG 2013. All rights reserved.Page 30 Siemens PLM Software
    31. 31. Femap 11External SuperelementsHow are superelements used? Break a large model into substructures and analyze it piece by piece Reduce model size for advanced analyses like nonlinear and dynamics (analysis only performed on residual) Conveniently split a model up for organizational reasons Share model information while maintaining confidentiality – external superelements © Siemens AG 2013. All rights reserved.Page 31 Siemens PLM Software
    32. 32. Femap 11External SuperelementsWhat is an external superelement? Winglet Model Matrix representation of a component or substructure: [K], [M], [B], {P} Transfer model representation without compromising confidentiality – no geometry or FE model data included Common node attachment points © Siemens AG 2013. All rights reserved.Page 32 Siemens PLM Software
    33. 33. Femap 11External Superelements Winglet: create external superelement Transfer SE data to wing OEM Wing: attach the external SE in the assembly run Winglet External Superelement © Siemens AG 2013. All rights reserved.Page 33 Siemens PLM Software
    34. 34. Femap 11 External SuperelementsSet up the creation of external superelements Creates the EXTSEOUT and ASSIGN statements Creates SPOINT/QSET entries on the fly for modal analysis (CMS) © Siemens AG 2013. All rights reserved. Page 34 Siemens PLM Software
    35. 35. Femap 11External SuperelementsSet up for the inclusion of external superelements in subsequentassembly runs (Superelement license required) Automatically creates the ASSIGN statement © Siemens AG 2013. All rights reserved.Page 35 Siemens PLM Software
    36. 36. Femap 11NX Nastran 8.5: External SuperelementsExternal superelement loads Static loads are now stored with external superelements  Load matrix {Pa} written out in the user-specified format  Column sorted to match load IDs  Results data can be recovered in the system run with SELOAD bulk data entry © Siemens AG 2013. All rights reserved.Page 36 Siemens PLM Software
    37. 37. Femap 11External SuperelementsBenefits Increased productivity  Easier to create and assemble external superelements  Easier management of NX Nastran input reference entries Less prone to error  All NX Nastran file management and external superelement entries are created automatically © Siemens AG 2013. All rights reserved.Page 37 Siemens PLM Software
    38. 38. Femap 11XY Plotting ConsiderationsIncreasing model size and corresponding quantity of results data lead toincreasing difficulty in timely results comprehension and understandingof model behavior XY plotting is a crucial component in results processingThe solution Streamlining and extension of Femap’s XY plotting capability © Siemens AG 2013. All rights reserved.Page 38 Siemens PLM Software
    39. 39. Femap 11Streamlined XY PlottingNew XY Plotting Interface Enhanced graphics Unlimited number of curves can be displayed at the same time Any number of charts can be saved to the databaseFuture development Extension to a full charting capability  Additional chart types – spline, bar, pie © Siemens AG 2013. All rights reserved.Page 39 Siemens PLM Software
    40. 40. Femap 11Streamlined XY Plotting © Siemens AG 2013. All rights reserved.Page 40 Siemens PLM Software
    41. 41. Femap 11Streamlined XY Plotting XY plotting based on data series  Different groups for different data series  Different beginning and ending output sets for transient data  View Femap functions Modern charting interface in a fully functional Femap pane Context sensitivity: right-click access to features and controls  Title: font, location etc.  Axes: logarithmic, grid lines, tick marks, hide  Background, colors, style  Markers: size, shape  Labels: data values Tooltip querying © Siemens AG 2013. All rights reserved.Page 41 Siemens PLM Software
    42. 42. Femap 11Streamlined XY PlottingBenefits Increased productivity  Easier creation of XY plots  Faster and easier comprehension of analysis results  Easier report creation © Siemens AG 2013. All rights reserved.Page 42 Siemens PLM Software
    43. 43. Femap 11NX Nastran IntegrationSolid composite modeling PCOMPS physical property for composites modeling with hexa and penta solid elements MATFT definition for failure theory material constantsBenefits of solid composites Offer a more geometrically precise representation More accurate interlaminar shear stresses than a 2D laminate representation © Siemens AG 2013. All rights reserved.Page 43 Siemens PLM Software
    44. 44. Femap 11NX Nastran Integration: Solid CompositesSolid composite modeling (cont.) Ply layup modeled with solid hexas and pentas (linear and parabolic) 1 to n plies per element Ply thickness is relative Ply failure theories:  Tsai-Wu, Hill, Maximum Stress, Hoffman, LaRC02 Interlaminar failure theories:  Shear and Normal © Siemens AG 2013. All rights reserved.Page 44 Siemens PLM Software
    45. 45. Femap 11NX Nastran Integration: Bolt Preloads for SolidsBolt preloads for solid elements Extension of beam element bolt preload modeling capability Represent preloaded bolts with solid hexa and penta elements Region definition with preload loadingBenefit More detailed stress recovery in and around bolt locations © Siemens AG 2013. All rights reserved.Page 45 Siemens PLM Software
    46. 46. Femap 11NX Nastran Integration: Nonstructural MassNonstructural mass regions Mass definition independent of structural model Define mass regions based on:  Geometry (curves, surfaces)  Elements (pbeam, pshell, psolid) Apply mass per area or length; total mass on area or length Mass regions are controlled within subcase levelBenefits Easier control and distribution of nonstructural mass Can apply differing mass distributions in a single run © Siemens AG 2013. All rights reserved.Page 46 Siemens PLM Software
    47. 47. Femap 11NX Nastran Integration: Variable Acceleration LoadACCEL entity Static acceleration load definition Allows different acceleration loads over different parts of the modelBenefits Easier to simulate combined rotational and translational accelerations Example applications:  Space systems © Siemens AG 2013. All rights reserved.Page 47 Siemens PLM Software
    48. 48. Femap 11NX Nastran Integration: MCIDMCID: specify shell elementmaterial angle definition bycoordinate system ID Easy to specify material angle across many elements regardless of their orientation MCID x-axis is projected onto elements © Siemens AG 2013. All rights reserved.Page 48 Siemens PLM Software
    49. 49. Femap 11NX Nastran Integration: Linear Contact BucklingLinear contact in buckling solutions Standard contact regions Set buckling solution in Analysis Manager Postprocessing reveals eigenvalue and eigenvector taking contact regions into consideration © Siemens AG 2013. All rights reserved.Page 49 Siemens PLM Software
    50. 50. Femap 11NX Nastran IntegrationOption to preserve INCLUDE statements Entities in the included data are not added to the Femap database Interfaces preferenceSupport for PARAM,BAILOUT Prevents bailout of solution due to errors for model checking Nastran bulk data optionCreate ASSIGN statements inAnalysis Text dialog in AnalysisManager © Siemens AG 2013. All rights reserved.Page 50 Siemens PLM Software
    51. 51. Femap 11Customer Driven EnhancementsMesh edge split Easy mesh splitting by selecting two nodes on an element edge Split propagates through the model maintaining a contiguous mesh Define limit split regions to control mesh splitting Splits hexa and penta solids, shells and beams © Siemens AG 2013. All rights reserved.Page 51 Siemens PLM Software
    52. 52. Femap 11Customer Driven EnhancementsMesh splitting: shell and beam model Automatically splits any beams encountered © Siemens AG 2013. All rights reserved.Page 52 Siemens PLM Software
    53. 53. Femap 11Customer Driven EnhancementsGlobal plies Automatically create global plies as you are creating a layup © Siemens AG 2013. All rights reserved.Page 53 Siemens PLM Software
    54. 54. Femap 11Customer Driven EnhancementsNew Add Connected Elements element selectionmethod in the Entity Selection dialog Selects picked elements and all the elements to which they connect Pick Elements Add Connected Elements © Siemens AG 2013. All rights reserved.Page 54 Siemens PLM Software
    55. 55. Femap 11Customer Driven EnhancementsModel Info tree scrolling Easier navigation and scrolling through long lists of entities like properties and materials Set maximum number of entities to display in File / Preferences Scroll using Previous / Next controls With pointer over visibility checkboxes:  Scroll using mouse wheel  Scroll using <CTRL> and <SHIFT> shortcuts with mouse wheel © Siemens AG 2013. All rights reserved.Page 55 Siemens PLM Software
    56. 56. Femap 11Customer Driven EnhancementsDatabase cleanup during save added to release any unused space Automatically compresses database reducing database size by freeing up previously used space e.g. after results output has been deletedCopy / Move to Set command added forloads and constraints Allows easier load and constraint definition set up within set definitions © Siemens AG 2013. All rights reserved.Page 56 Siemens PLM Software
    57. 57. Femap 11Customer Driven EnhancementsAbility to show up to 2 additional output vectors• Show results on line, shell, and solid elements at the same time• Show results on different types of elements with same topology (i.e., beam, bar, and rod results) all in one plot. © Siemens AG 2013. All rights reserved.Page 57 Siemens PLM Software
    58. 58. Femap 11Customer Driven EnhancementsRedesigned Select Postprocessing Data dialog Filters added to aid output set and vector data selection © Siemens AG 2013. All rights reserved.Page 58 Siemens PLM Software
    59. 59. Femap 11Customer Driven EnhancementsResults enveloping Quick results envelope creation directly from the Model Info tree © Siemens AG 2013. All rights reserved.Page 59 Siemens PLM Software
    60. 60. Q and A © Siemens AG 2013. All rights reserved.Page 60 Siemens PLM Software